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Hi Zak im not sure if this is for some sort of class project or if its symptoms you are actually suffering. Hopefully not the latter. The signs of heart disease are not obvious all the time and sometimes a heart attack is the first indicator. There is also no single cause of heart disease but there ...

... should be irrelevant to this discussion. Your questions go to the heart of the matter. The thing with simple life forms like bacteria is that ... I couldn't disagree more. The classic example is that of 'catastrophic failure', i.e. that a single part going bad might lead to the collapse of ...